Talk about unnerving... I just got home from being out of town for 5 days... and my front door was wide open. Nothing's missing (nothing obvious anyway), nobody's here, and there are no signs of forced entry. I called the police, they said there were no reports for this location. They offered to send an officer over, but I declined because of the aforementioned lack of anything missing or anyone here. The only thing I can think of is that I must have accidentally left the door open when I left on Thursday.